Method of treating avian lymphomatosis induced by es4 strain of lymphomatosis virus



United States Patent C US. or. 424-343 3 Claims Int. 01. A61k 27/00 ABSTRACT OF THE DISCLOSURE A pharmaceutical composition comprising cis-2,6-dimethyl-A- -octadiene-8-01 as the active ingredient. This medicament is efiective to treat avian lymphcmatosis virus strain BS It is an object of the present invention to provide a method of treating avian leukemia or lymphomatosis virus strain E8 by the administering of a pharmaceutical com position having, as its active ingredient, cis-2,6-dimethyl- A- -octadiene-8ol.

Still further objects and advantages of the composition and method of the present invention will become more apparent from the following more detailed description of the present invention.

The active antineoplastic medicament of the present invention is cis-2,6-dimethy1-A- -octadiene-S-ol, commonly known as geraniol. The properties of this material can be found in the Merck Index, 7th edition, 1960, at page 477. It can be prepared by any of the conventional methods known in the art.

The active antiavian lymphcmatosis medicament is preferably employed for treatment of avian lymphoma tosis virus strain ES, as the active ingredient in a pharmaceutical composition comprising said active ingredient and a pharmaceutically acceptable vehicle or carrier.

Such a vehicle can be a liquid such as for use as an internally injectable medicament or oral administration or as a topical application as a pomade or cream. Any conventional pharmaceutically acceptable vehicle such as Water, saline, glycerol, carboxymethyl cellulose, oils such as peanut oil, sesame oil, olive oil, propylene glycol, polyalkyleneglycols, and various other water-like vehicles employed in the preparation of an internally injectable medicament or a topically applied emulsion or suspension as a cream or pomade.

Similarly, the pharmaceutically acceptable vehicle can be a solid vehicle or carrier conventionally employed in the production of medicinal capsules or cachets and tablets.

The tablets prepared in accordance with the present invention preferably contain about 0.2 gram of the active cis-2,fi-dimethyl-A- -octadiene-S-ol although greater or lesser amounts can be advantageously employed where desired for medicinal purposes. In general from about 1 to 3 dosages of such tablets is a suflicient daily dosage of the antimedicament lymphomatosis virus strain B8,.

The tablets, in addition to the active antineoplastic medicament contain the conventional dilutants, binders, disintegrators, lubricants, coloring agents and/or flavoring agents found in pharmaceutically acceptable compressed tablets. Suitable materials are those found in Husas Pharmaceutical Dispensing, by Martin, th edition, 1959, pp. 67-69.

The same dilutants etc. as employed in the preparation 3,429,971 Patented Feb. 25, 1969 of tablets containing the active antiavian lymphcmatosis medicament of the present invention can also be employed in hard or soft gelatin capsules or rice flour cachets. Again, such capsules or cachets preferably contain about 0.2 gram of active medicament, a daily dosagepf from about 1 to 3 of such capsules or cachets being sufllcient for the treatment of lymphomatosis virus strain BS This same dosage is also suitably employed when a liquid carrier is utilized to prepare an internally injectable pharmaceutical composition or a topical application of the antineoplastic medicament.

The sis-2,6-dimethyl-A- -octadiene-8-01 of the present invention is particularly applicable for the treatment of avian lymphomatosis virus strain B8,. The applicability for such purposes is shown by the following specific examples. It is to be understood that such examples are for purposes of illustration only and the present invention is in no way to be deemed as limited thereto.

EXAMPLE 1 The therapeutic effect of the medicament was determined With reference to avian lymphcmatosis and compared with that of a known antileukemia agent, namely 6-mercaptopurine. Experiments were conducted on chickens with strain ES, of the lymphcmatosis virus.

The chickens were subjected to the experiment at the age of four days.

Black Leghorns crossed with Rhode Island Reds were used.

The primary infection was obtained from a lyophilized virus ES, preparation. The virus was diluted in a Lemco bouillon solution in a proportion of 1 to 10. 0.2 cc. of the floating liquid were injected into the thigh muscle. The virulence of the injected dose was such that the chicks died within a maximum period of two weeks.

For subsequent passages on healthly chicks, the work was done using tumors that developed at the site of infection of the infected chicks. Afiter isolation of the surrounding muscle, 1 g. of the tumor was ground with 9 cc. distilled water.

The floating liquid was used for subsequent injections, 0.2 cc. per chick, in the thigh. Here again the injected dose was such that the controls died in a period of less than two weeks.

The first therapeutic dose was administered 48 hours before the injection and 5 doses were given at a rate of one dose per day.

The inhibiting effect and the therapeutic action of the novel medicament were measured by the Mr/Mz, ratio of average survival of the treated animals in comparison to the controls, or by the number of cures etfected.

TABLE 1 Therapeutic agents Doses in N0. Mr/Mt No.

mg. chicks Cures Ole-2, tf--din1e1:hyl-. f\

octadiene-B-ol 1 15 8 Mercaptopurine 1 15 2.05 0

TABLE 2 Doses No. in mg. chicks 2,6-dimethyl-A --octene-8-ol 1 6 Trans-2,6-dimethyl-A octadiene-8-0L 3,7,ll-trimethyl-A docecatriene-l-ol fi-dimethyl-A' -octadiene-G-oL- l-methyl--isopropyl-AI- eyclohexane-8-ol Undecylenlc alcohol Undeoyl alchohol Iso-octyl alcohol. Dodeoyl alcohol Decyl alcohol. Oleic alcohol Mr/Mt No Therapeutic agents Cures NU! me 5 These results clearly show that While certain other alcohols had an efiect on lymphomatosis, such effect was to a much lesser degree, indicating the unexpected effectiveness of cis-2,G-dimethyI-AJ' -octadiene-8-0l.

I claim:

1. A method of treating avian lymphomatosis induced by the ES; strain of lymphomatosis virus which comprises administering to a bird an efiective amount of cis-2,6-di- 2. The method of claim 1 wherein said cis-2,6-dimethyl-A- -octadiene-8-ol is present as the active ingredient in a pharmaceutically active vehicle.

3. The method of claim 1 wherein the treatment of avian lymphomatosis is conducted on chickens.

References Cited Bar-anger et al.: Abstract of Papers, Ninth International Cancer Congress, Tokyo, Oct. 23-29, 1966, section 1- 13f, Abstract No. 50643.

Chemical Abstract, 58: 8336g to 83376 (1963).

Dyer: An Index of Tumor Chemotherapy, National Cancer Institute, March 1949, pp. 10-12 and 69.

Field et al.: Cancer Research, vol. 18, No. 8, Part 2, September 1958, pp. 467-471 and 478.

ALBERT T. MEYERS, Primary Examiner. I. GOLDBERG, Assistant Examiner. 

